using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.Markup.Xaml;
using demofinish.Model;
using Avalonia.Controls.ApplicationLifetimes;
using System;
using Avalonia.Layout;
using MsBox.Avalonia;
using MsBox.Avalonia.Enums;

namespace demofinish;

public partial class EditWindow : Window
{
    private readonly MainWindow.AgentPresenter _selectedAgent;
    private readonly User1Context _context;
    
    public EditWindow()
    {
        InitializeComponent();
    }

    public EditWindow(MainWindow.AgentPresenter selectedAgent) : this()
    {
        _selectedAgent = selectedAgent;
        _context = new User1Context();
        
        InitializeComponent();
        LoadAgentData();
    }

    private void LoadAgentData()
    {
        
        NameBox.Text = _selectedAgent.Title;
        AdressBox.Text = _selectedAgent.Address;
        PhoneBox.Text = _selectedAgent.Phone;
        EmailBox.Text = _selectedAgent.Email;
        InnBox.Text = _selectedAgent.Inn;
        KppBox.Text = _selectedAgent.Kpp;
        BossNameBox.Text = _selectedAgent.Directorname;
        PriorityBox.Text = _selectedAgent.Priority.ToString();

        
        var agentTypes = _context.Agenttypes.ToList();
        AgentTypeBox.ItemsSource = agentTypes;
        
        
        var currentType = agentTypes.FirstOrDefault(at => at.Id == _selectedAgent.Agenttypeid);
        AgentTypeBox.SelectedItem = currentType;
    }

    private void BackButton(object? sender, RoutedEventArgs e)
    {
        Close();
    }

    private async void EditAgent_Button(object? sender, RoutedEventArgs e)
    {
        
        if (string.IsNullOrEmpty(NameBox.Text) ||
            string.IsNullOrEmpty(InnBox.Text) || InnBox.Text.Length != 10 ||
            string.IsNullOrEmpty(KppBox.Text) || KppBox.Text.Length != 9 ||
            string.IsNullOrEmpty(PhoneBox.Text) ||
            string.IsNullOrEmpty(AdressBox.Text) ||
            string.IsNullOrEmpty(PriorityBox.Text) ||
            string.IsNullOrEmpty(BossNameBox.Text) ||
            string.IsNullOrEmpty(EmailBox.Text) || !EmailBox.Text.Contains("@"))
        {
            ErrorTextBlock.Text = "Агент не отредактирован";
            return;
        }
        
        

        _selectedAgent.Title = NameBox.Text;
        _selectedAgent.Address = AdressBox.Text;
        _selectedAgent.Phone = PhoneBox.Text;
        _selectedAgent.Email = EmailBox.Text;
        _selectedAgent.Inn = InnBox.Text;
        _selectedAgent.Kpp = KppBox.Text;
        _selectedAgent.Directorname = BossNameBox.Text;

        if (int.TryParse(PriorityBox.Text, out int priority))
        {
            _selectedAgent.Priority = priority;
        }



        if (AgentTypeBox.SelectedItem is Agenttype selectedType)
        {
            _selectedAgent.Agenttypeid = selectedType.Id;
        }


        var dbAgent = _context.Agents.FirstOrDefault(a => a.Id == _selectedAgent.Id);
        if (dbAgent != null)
        {
                
                
                
            dbAgent.Title = _selectedAgent.Title;
            dbAgent.Address = _selectedAgent.Address;
            dbAgent.Phone = _selectedAgent.Phone;
            dbAgent.Email = _selectedAgent.Email;
            dbAgent.Inn = _selectedAgent.Inn;
            dbAgent.Kpp = _selectedAgent.Kpp;
            dbAgent.Directorname = _selectedAgent.Directorname;
            dbAgent.Priority = _selectedAgent.Priority;
            dbAgent.Agenttypeid = _selectedAgent.Agenttypeid;

            await _context.SaveChangesAsync();


            Close();
        }
    }

    private async void DeleteButton(object? sender, RoutedEventArgs e)
{
    
    bool hasProductSales = _context.Productsales.Any(ps => ps.Agentid == _selectedAgent.Id);
    
    if (hasProductSales)
    {
        ErrorTextBlock.Text = "Нельзя удалить агента с историей продаж";
        return;
    }

    
    var confirmDialog = new Window
    {
        Title = "Подтверждение удаления",
        Width = 300,
        Height = 150,
        WindowStartupLocation = WindowStartupLocation.CenterOwner
    };

    var panel = new StackPanel { Margin = new Thickness(10) };
    
    var textBlock = new TextBlock 
    { 
        Text = "Вы уверены, что хотите удалить этого агента?",
        Margin = new Thickness(0, 0, 0, 10)
    };
    
    var buttonPanel = new StackPanel { Orientation = Orientation.Horizontal, HorizontalAlignment = HorizontalAlignment.Center };
    
    var yesButton = new Button { Content = "Да", Margin = new Thickness(5), Width = 70 };
    var noButton = new Button { Content = "Нет", Margin = new Thickness(5), Width = 70 };
    
    bool confirmed = false;
    
    yesButton.Click += (s, args) => 
    {
        confirmed = true;
        confirmDialog.Close();
    };
    
    noButton.Click += (s, args) => confirmDialog.Close();
    
    buttonPanel.Children.Add(yesButton);
    buttonPanel.Children.Add(noButton);
    
    panel.Children.Add(textBlock);
    panel.Children.Add(buttonPanel);
    
    confirmDialog.Content = panel;
    
    await confirmDialog.ShowDialog(this);
    
    if (!confirmed)
    {
        return;
    }

    try
    {
        
        var dbAgent = _context.Agents.FirstOrDefault(a => a.Id == _selectedAgent.Id);
        if (dbAgent != null)
        {
            
            var priorityHistories = _context.Agentpriorityhistories.Where(aph => aph.Agentid == dbAgent.Id);
            _context.Agentpriorityhistories.RemoveRange(priorityHistories);

            
            var shops = _context.Shops.Where(s => s.Agentid == dbAgent.Id);
            _context.Shops.RemoveRange(shops);

            
            _context.Agents.Remove(dbAgent);

            await _context.SaveChangesAsync();
            
            Close(); 
        }
    }
    catch (Exception ex)
    {
        ErrorTextBlock.Text = $"Ошибка при удалении: {ex.Message}";
    }
}
}